Improvement in saw-mills



@intimi gta-tee aient dtliirc.

WILLIAM PENNY, OF MILTON, FLORIDA.

Letters Patent N 97 ,112, dated November 23. 1869.

Hoof- IMPROVEMENT IN SAW-MILLS.

The Schedule refen'pd to in `these Letters Patent and making part cf the same.

To ZZ whom it may concern.

. proved gang-saw mill.

Figure 2 is a side elevation of the saine.

Similar letters 'of reference indicate corresponding parts.

lhis invention relates to a new manner of construct' ing andai-ranging thc flames of gang-saw mills, with a view of producing a simple, effective, and compact ulachinery, which nia-y be readily transported',and which will combine all the requisites of' a full-working mill.

lhe invention consists, chiefly, in so constructing and arranging` the frame of the saw-mill, that it will serve-as a support for the steam-cylinder which operates the saws,and for the feed-rollers that convey-the stun', and as a guide furthe reciprocating sash in which the saws are held. Thereby compactness, strength, and cheapness of construction Aare obtained.

The invention consists, also, in various details of construction and arrangement, as hereinafter more fully described. l

A, in the drawing, represents'the frame ofthe sawmill. 1t consists chietly of two side-plates, B B, which are held at a suitable distance apart by the steanicylinder, C, said cylinder having side-flanges, a a, which are bolted t0 the plates-B, near the lower ends of thc same.

The cylinder C -is thus -made to form part of the frame A, andto brace andretain in position the sideplates of the saine.

' The plates Bare, on their inner sides, and some distance above the cylinder C, provided with horizontal-projecting flanges or brackets, R R, which are cast or secured on. the same. i

These flanges or brackets serve to support the frame A, and all its appendages, on a. suitable fixed frame, T, indicated by dotted lines-in iig. 1.A The frame A is in this manner suspended with its lower part from the frame T.

F represents the sash in whichthe gang of saws J J is secured. This sash is made in the form of a. foursided ti'ame, of one piece of cast-inetal, and fits, with `its` side-pieces G, into the vertical slots formed in the plates B.

From the sides G, oft-he frame'F, project pins K K,

which'serve as journals o'r pivots for the upper ends ot' pitmen-rods L L, as shown.

The piston-rod D, ofthe vertical cylinder C, is connected with the lower bar E, of the sash F. 4The sash serves, therefore, notonly as a support for the saws, but. also as across-head or guide for the. piston-rod.

The pitmen-rods connect the sash with cranks P of a transverse shaft, M, which has its bearings in the lower part ofthe frame A, below the c v'linder.

S S are the lower iced-rollers, on which the stuit' to be sawed is carried tothe saws.

'lhere may also be upper feed-rollers, which should bc vertically adjustable in slots b of thc'plates B.'-

'lhc iced-rollers may, by suitable connection with the shaft M, receive automatically the motion which" will cause the. stu'to be ted Aalong'with the requisite speed.

Ribs,.H, may be formed on thel plates B, and jaws I, on the sash, to embrace them, so that the sash will therebyobtain still more perfect guidance.

Having thnsdeseribed my invention, 1

What l claim as new, and lesire to secure by Letters Patent, is-

1. The iframe A, of a gang-saw mill, .constructed as described, and provided with flanges or brackets, R,

between the cylinder O and the. saw-frame l, sub` stant-ially as describeth'so that it is suspended and properly balanced in the manner specified.

2. ,'lhecylinder C, provided with flanges a, to brace the plates B, of the ralme A, alnl'to`becou|e portion of said frame, substantially as herein shown and dcscribed.

WM. PENNY.

Witnesses:

D. O. STODDARD, E. B. 'HAsTmes 

